Bolstering Public Support for State-Level Renewable Energy Policies
July 3, 2017 | MITEstimated reading time: 9 minutes
The results show that an increase in residential energy costs has a far greater impact on the outcome than any of the other attributes. Adding $2 to an electricity bill decreased support for an RPS policy by about 6 percent, while a $10 increase decreased support by fully 13 percent. Those changes are large enough to flip majority public opinion within some states from supporting to opposing RPS policies. In the $2 case, 13 states shifted from supporting to opposing; in the $10 case, 33 states moved to the opposing side.
The possible impact on jobs is another big factor — one that can push support either way. Being told that the bill won’t create any jobs prompted 3.2 percent of respondents to oppose the bill. With that change, five states flipped from majority support to majority opposition. On the other hand, learning that the RPS policy will probably create several thousand jobs caused 7 percent of respondents to support the bill, a change that flipped eight states from majority opposition to majority support. “So if people think these policies will create a lot of jobs, public support increases enough to lead almost every state — except possibly the most conservative ones — to support RPS policies,” Stokes notes.
The results provide some interesting clues about what people believe now. For example, the response to added costs suggests that many people think renewables won’t — or shouldn’t — cost them anything extra. The prospect of a $2 increase in their electricity bill prompts a shift toward opposition. If people started out thinking renewable standards would cost them something, adding just $2 to the bill probably wouldn’t have elicited such a change.
The negative response to learning that the new policy will bring no extra jobs conveys a different message. “It may suggest that in the absence of any added information, people think the new bill will lead to a small increase in jobs — which frankly is generally about right,” says Warshaw. Once again, the experiment uncovered starting assumptions that people may have — perhaps without knowing it.
Environmental impacts
Another reason to support using renewable energy may be the promise of environmental benefits. The survey tested that idea by telling some respondents that increasing renewable energy will reduce harmful air pollution in their state, including toxins such as mercury. Learning that air pollution will go down brings almost as large a response as learning that employment will go up: 6.7 percent of people move to the supporting side. “So emphasizing either job creation or air quality benefits could cause eight of the 10 states where a majority now opposes RPS bills — and where RPS policies largely do not exist — to flip to a majority in support,” says Stokes.
Interestingly, linking RPS policies to climate change had no impact on public support. The survey included various statements about the effects of RPS policies on greenhouse gas emissions and about whether or not supporters and opponents believe climate change to be a serious problem. While the added information increased support slightly, the change wasn’t large enough to be statistically significant.
Warshaw believes that the lack of impact isn’t because people don’t know or care about climate change. “I think it’s because they already have a pretty strong view on the connection between renewable energy policies and climate change,” he says. “Their view is already baked in, so you can’t frame the question in a way that triggers a change.”
Partisan support
One more factor of interest is the role played by elites in U.S. political parties. Some research suggests that partisanship isn’t important for energy policy, even though it has been shown to influence public support in other policy domains. So the researchers added some partisan cues.
They found that when people were told that Democratic legislators support the RPS policy, public support increased by 2.4 percent, and three states flipped from majority opposition to majority support. When respondents were told that Republican legislators support it, public support increased by 5.5 percent, and seven states flip to majority support. Interestingly, the results show that if an elite affiliated with one political party supports the RPS policy, there is no statistically significant decrease in support by respondents affiliated with the other party.
Warshaw believes that support by partisan elites can have a big impact in part because people’s views on renewable energy “aren’t super-strongly formed,” he says. “On policies they don’t know much about, people look to their elected officials to tell them what the right thing to believe is. There’s considerable political science evidence that that’s true.”
Stokes notes that while none of the statements relating to climate change seemed to influence public opinion in the survey, in the absence of a coherent federal policy, state-level RPS policies may actually prove the most effective means of securing climate benefits. That prospect underscores the need for continuing public engagement during the decades-long process of weaning the U.S. energy system off fossil fuels.
This research was supported by the MIT Energy Initiative Seed Fund Program. While at MIT, Leah Stokes was a 2010-2011 Siemens-MIT Energy Fellow and a 2013-2014 Martin Family Sustainability Fellow. Logistical support was provided by the MIT Political Experiments Research Lab.
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